Heat and Mass Transfer The heat is transferred by conduction, convection and radiation in Boiler furnaces Melting of ice None of these Condensation of steam in condenser Boiler furnaces Melting of ice None of these Condensation of steam in condenser ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A designer chooses the values of fluid flow rates and specific heats in such a manner that the heat capacities of the two fluids are equal. A hot fluid enters the counter flow heat exchanger at 100°C and leaves at 60°C. A cold fluid enters the heat exchanger at 40°C. The mean temperature difference between the two fluids is 66.7°C 60°C 40°C 20°C 66.7°C 60°C 40°C 20°C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Log mean temperature difference in case of counter flow compared to parallel flow will be Depends on other factors Less More Same Depends on other factors Less More Same ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A perfect black body is one which Is black in colour Absorbs heat radiations of all wave lengths falling on it Transmits all heat radiations Reflects all heat Is black in colour Absorbs heat radiations of all wave lengths falling on it Transmits all heat radiations Reflects all heat ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water at 20°C is of the order of 0.51 0.42 0.23 0.1 0.51 0.42 0.23 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Liquids None of these Solids Gases Liquids None of these Solids Gases ANSWER DOWNLOAD EXAMIANS APP
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